Java Code Examples for org.openide.nodes.Node#EMPTY

public void updateNodes(final InstanceTargetXNode parent) {
    if (original == Node.EMPTY) {
        changeOriginal(createWaitNode());
        UI_REFRESH_PROCESSOR.post(new Runnable() {
            public void run() {
                Node newOriginal = null;
                if (parent != null) {
                    newOriginal = parent.getDelegateTargetNode();
                    lastDelegateTargetNode = newOriginal;
                }
                if (newOriginal != null) {
                    changeOriginal(newOriginal);
                } else {
                    changeOriginal(Node.EMPTY);
                }
            }
        });
    }
}
 

@Override
public boolean isEnabled() {
    Browser browser = getBrowser();
    if(browser == null) {
        return false;
    }        
    if(browser.getExplorerManager().getRootContext() == Node.EMPTY) {
        return false;
    }
    Node[] nodes = getBrowser().getSelectedNodes();
    if(nodes.length != 1) {
        return false;
    }
    return nodes[0] instanceof RepositoryPathNode && 
           ((RepositoryPathNode) nodes[0]).getEntry().getSvnNodeKind() == SVNNodeKind.DIR;
}
 

public void setRootElement(ElementNode.Description elementDescription, boolean singleSelection) {  
    
    Node n;
    if ( elementDescription != null ) {
        ElementNode en = new ElementNode(elementDescription);
        en.setSingleSelection(singleSelection);
        n = en;        
    }
    else {
        n = Node.EMPTY;
    }
    manager.setRootContext(n);
    
}
 

/** Help for this panel.
* @return the help or <code>null</code> if no help is supplied
*/
public HelpCtx getHelp () {
    if (templateWizard1UI != null) {
        if (templateWizard1UI.getExplorerManager().getRootContext() != Node.EMPTY) {
            return new HelpCtx(TemplateWizard1.class.getName()+"."+ // NOI18N
                templateWizard1UI.getExplorerManager().getRootContext().getName());
        }
    }
    return new HelpCtx (TemplateWizard1.class);
}
 

private static Node findNode(File f) {
    try {
        if (f != null) {
            final FileObject fo = FileUtil.toFileObject(f);
            if (fo != null) {
                return DataObject.find(fo).getNodeDelegate();
            }
        }
    } catch (DataObjectNotFoundException ex) {
        Exceptions.printStackTrace(ex);
    }
    return Node.EMPTY;
}
 

private Node createLibraryPackageViewNode(FileObject jfo) {
    Icon icon = getLibrariesIcon();
    FileObject root = FileUtil.getArchiveRoot(jfo);
    if (root == null) {
        return Node.EMPTY;
    }
    String name = String.format(getMessage("LBL_WrappedLibraryFmt"), FileUtil.toFile(jfo).getName());
    return ActionFilterNode.create(PackageView.createPackageView(new LibrariesSourceGroup(root, name, icon, icon)));
}
 

public Node getDelegateTargetNode() {
    Node xnode = getXNode();
    if (xnode != null && xnode != Node.EMPTY)
        return xnode;
    ServerTarget st = getServerTarget();
    if (st == null)
        return xnode;
    Node tn = instance.getServer().getNodeProvider().createTargetNode(st);
    if (tn != null)
        xnode = tn;
    return xnode;
}
 

protected @Override
Node createNodeForKey(Object mdl) {
    if (mdl instanceof TaskInfo) {
        return new MojoNode((TaskInfo) mdl, gradleProject);
    } else if (mdl instanceof GradleCommandTemplate) {
        return new UserTaskNode((GradleCommandTemplate) mdl, gradleProject);
    } else {
        return Node.EMPTY;
    }
}
 

public InstanceTargetXNode(Node instanceNode, ServerInstance instance) {
    this(instanceNode, Node.EMPTY, new InstanceTargetChildren(Node.EMPTY));
    this.instance = instance;
    instance.addStateListener(this);
}
 

@NonNull
final Node logicalViewForProject(
        @NonNull final Project project,
        final Union2<LogicalViewProvider,org.openide.util.Pair<Sources,SourceGroup[]>> data,
        final boolean[] projectInLookup) {
    Node node;            
    if (!data.hasFirst()) {
        LOG.log(
                Level.WARNING,
                "Warning - project of {0} in {1} failed to supply a LogicalViewProvider in its lookup",  // NOI18N
                new Object[]{
                    project.getClass(),
                    FileUtil.getFileDisplayName(project.getProjectDirectory())
                });
        final Sources sources = data.second().first();
        final SourceGroup[] groups = data.second().second();
        sources.removeChangeListener(this);
        sources.addChangeListener(this);
        if (groups.length > 0) {
            node = PhysicalView.createNodeForSourceGroup(groups[0], project);
        } else {
            node = Node.EMPTY;
        }
    } else {
        final LogicalViewProvider lvp = data.first();
        node = lvp.createLogicalView();
        if (!project.equals(node.getLookup().lookup(Project.class))) {
            // Various actions, badging, etc. are not going to work.
            LOG.log(
                    Level.WARNING,
                    "Warning - project {0} failed to supply itself in the lookup of the root node of its own logical view",  // NOI18N
                    ProjectUtils.getInformation(project).getName());
            //#114664
            if (projectInLookup != null) {
                projectInLookup[0] = false;
            }
        }
    }                        
    node.addNodeListener(WeakListeners.create(NodeListener.class, this, node));
    return node;
}
 

public Node[] createNodes(Object key, DataObject dataObject, boolean readOnly) {
    return new Node[]{Node.EMPTY};
}